Water

(Released on June 6, 2025) Version 1.5 of the California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) is a major u...

CSDP Version 2025-06-11_#d0d0f0c

Published by: California Department of Water Resources
Last updated: Friday, June 20, 2025
File types: ZIP, HTML

This release includes a number of improvements, including output location creation...

DWR's Basin Characterization Program

Published by: California Department of Water Resources
Last updated: Friday, June 20, 2025
File types: BIN, .ZIP, ZIP, FILE GEODATABASE, PDF

DWR has a long history of studying and characterizing California’s groundwater aquifers as a part of California’s Groundwater (Bulletin 118). The Basi...

County Land Use Surveys

Published by: California Department of Water Resources
Last updated: Friday, June 20, 2025
File types: ZIP

This is collection of DWR County Land Use Surveys. You may scroll the list below to download any individual survey of interest. Historic County L...

EMP Discrete Water Quality Data

Published by: California Department of Water Resources
Last updated: Friday, June 20, 2025
File types: CSV, PDF

Discrete water quality monitoring data from the Sacramento-San Joaquin Bay-Delta collected by the Environmental Monitoring Program. Data is also ac...

Surface Water - Habitat Results

Published by: California State Water Resources Control Board
Last updated: Tuesday, June 3, 2025
File types: PDF, ZIP, CSV

This data provides results from field analyses, from the [California Environmental Data Exchange Network](https://ceden.org/) (CEDEN). The data set co...

Surface Water - Aquatic Organism Tissue Sample Results

Published by: California State Water Resources Control Board
Last updated: Tuesday, June 3, 2025
File types: PDF, ZIP, CSV

This data set provides results of tissue from organisms found in surface waters, from the [California Environmental Data Exchange Network](https://ced...

Surface Water - Chemistry Results

Published by: California State Water Resources Control Board
Last updated: Tuesday, June 3, 2025
File types: PDF, ZIP, CSV

This data provides results from the [California Environmental Data Exchange Network](https://ceden.org/) (CEDEN) for field and lab chemistry analyses....